Combined drying and burning kiln



H. R. STRAIGHT COMBINED DRYING AND BURNING KILN Jan. 24, 1928.

2 Sheet Jan. 24, 1928.

H. R. STRAIGHT COMBINED DRYING AND BURNING KILN Filed April 1926Sheets-SheetZ Patented clan, 192d,

sierra STATE near nanvnn B. STRAIGHT, or Anna, town.

GOIMBINED DBYIJEQ G fill) BURNING EILN.

Application fi'cd April 14,

This invention relates to improvements in and burning of ceramic Wares.,3 ct of my invention is to so construct andarrange a kiln that thedrying and hitu'ning kilns may be so combined that the plastic orundricd ivare may be placed on zolc cars and first passed through the diig kiln, and then advanced. through the burning kiln in aprogressivemanner, and provide in connection therewith means whereby thesaid cars may be partially filled with drain tile or similar Ware andthen dried, after which other plastic Ware may be placed on top of thedry Ware and then passed through the remainder of the drying kiln, terWhich it may be advanced through the burning kiln, thereby providingmeans whereby the cars may be tilled to a larger capacity, beforeentering the burningkiln, than would otherwise be permitted if the carswere completely filled and then dried, as the iveight of the material onthe top portion of thecar vould crush that in the lower part. I find inburning pressed brick and the like that this precaution is notnecessary, as the brick in the lower part otthe car will support theentire Weight of the stack, even it it is all stacked in an undriedcondi' tion.

It is, therefore, a further object of my invention to provide meanswhereby pressed lnJick and the like may be introduced at a later pointof admission to the drying kiln, thereby eliminating the necessity ofoperating the first stage or stages While burning this class of ware.

A further object is to so arrange and construct the kiln and apparatusfor delivering i e thereto, that a single pug mill may be utilised tofeed a number of tile machines,

' one of which is located at a point adjacent to the first point ofdelivering the tile to the drying kiln, and another at a second point ofdelivering tile to the drying kiln and etc, so that tile may be fed tothe kiln cars at either one or several of these points of delivery. j

A further object is to provide one or more b ick machines located atthesecond point of deliveryiso that the cars maybe loaded with were at thispoint anddelivered to the second drying kiln. H a

A further object is to provide two sets of drying and burning kilnsarranged in a parallel manner with each other, and to provide 1926.Serial no. 101,9es.

means whereby the tile or brick machines of one set of kilns may beutilized to furnish material to either one or both of said sets ofkilns, so that it one set of tile machines is out oi. operation, theother tile machine may be made to supply both sets o'fkilns.

A, further object is to arrange the sets of kilns in such a manner thata track arrangement may be provided ivhereby freight cars may be lilledeasily and economically from either one or both of said sets of kilns.

it. further object is to provide in a drying kiln improved means forcirculating the drying med um through the Ware.

My invention consists in the construction, arrangen'ient and combinationof the various parts of the device, whereby the objects contemplated areattained, as hereinafter more fully set forth, pointed out in my claims,and illustrated in the accompanying drawings, in which:

Figure 1 is a plan view of my improved combined drying and burning kiln.

Figure 2 is a detail sectional view taken on the line 22 of Figure 1.

Figure 3 is a detail sectional view taken on the line 3-3 of Figure 1.

Figure 4 is a detail sectional View taken on the line 44- of Figure 1.

Figure 5 is a segmental, longitudinal, sectional view taken on the line5-5 01": Figure 1. j s Figure 6 is an enlarged, detail, segmental,sectional view showing a tile supporting floor, taken substantially onthe line 66 of Figure 52.

Figure 7 is a detail sectional view taken on the line 7'? of Figure 1.

Figure 8 is a detail sectional View taken on the line 8-8 oi. Figure 2.

My improved kiln construction comprises a drying kiln 10, a seconddrying kiln 11 and a burning kiln 12, all of said kilns beingin the formof anarched tunnel and arranged in common alinement. The drying kilns 10and 11 have their adjacent ends spaced a considerable distance apart,While the adjacent ends of the kilns 11 and 12 are joined. The bottomsof all of said kilns are provided With tracks 13 for supporting Warebearing cars 14;. The upper surface of each of the cars 14 is providedWitha fireproof floor construction formed of a series of transverselyarranged blocks 15. The adja cent edges of said blocks are provided withlit) grooves 16 so arranged that when the blocks are laid side by sideon the said cars, transversely arranged passages will be provided, whichare open at each end and top. The lloor so constructed that tile 17 maybe stacked thereon in a vertical manner so that vertical passages may beprovided through the stack of were which will communicate with thehorizontally and t 'ansverscly arranged passages in the floor.

Supported at each side of the *ars 14 and resting on the floor of thekilns 10 and 11 I have provided conduits 18, the top faces 01" Which areslightly below the horizontal pas sages through the floor blocks 15.Arranged above each of the conduits 18 is a second conduit 19 which has1ts inner SIClG open and in alineinent with said horizontal passages.The upper surfaces of the conduits 19 are provided with a series ofupwardly extending nozzles 20, Whilethe upper faces otthe conduits 18are also provided with a series of upwardly extending nozzles 21, thenozzles 21 beingarranged beneath and in alinement with the nozzles 20.The conduits 18 are connected by means of a transversely arrangedconduit 22, one end of which extends upwardly along one side of the kiln12 adjacentto the kiln 11 and has its upper end operatively connectedwith a blower casing 23, which is provided with a suitable blowermechanism not illustrated, and which may beoperated by a suitable 1notor24.

The casing is provided with an intake pipe 25 which may be connectedwith the interiorof the burning kiln 12 at various convenient points inthe cooling end of said kiln, so that heated air may be drawn from saidkiln and delivered to theicondnits 18 under pressure, which will bedischarged through the nozzles21 and into the nozzles 20, therebycausing an, induced air current through the passages lti and downwardlythrough the vertical passages of the ware, which will be dischargedupwardly between the sides of the Ware and the inner face 01 the Wallsof the kiln in the manner as indicated by the arrows in Figure '2,thereby providing means for creating a very uniform circulation of airthrough said ware.

In the top of the kilns 11 andlO I have provided a series oflongitudinally extending pipes 26. The pipes of the kiln 11 are mountedin an end portion 27 above. the were in the cars and communicating withthe interior of the burning kiln 12. The opposite ends of the pipes 26of the kiln 11 are mounted in a, header 28. A similar header 2.9isprovided for the kiln 10. The said headers 28 and 29 are connected bya pipe 30. The opposite ends of the pipes 26 of the kiln 10 are providedwith upwardly extended portions 31 extending through the top of saidkiln, thereby providing means whereby heated air from the kiln 12 may hepassed through the top of both oil. the kilns 10 and 11 and cause thespace above the wore in said kilns to be heated. The blast from thenozzles 20 and the circulation formed thereby cause said heated air or12 similar to the ones above described and parallel therewith, saidkilns being spaced apart a consideral'ile distanre so that a doublerailroad track may he placed between said kilns, and also tracks 33 andtill placed between said railroad tracks and the corresponding kilns.The said tracks 33 and 33 are designed to receive the kiln cars by meansof suitable transfer cars 34 which are mounted on transversely arrangedtracks and 35. By this arrangement it will be seen that loaded kiln carsfrom either the kilns 1.2 or 12 may he i'noved to the respective tracks33 or 33*, which run parallel and adjacent to the tracks 32, so thatWare may be easily and quickly loaded from said kiln cars directly tothe freight cars with a minimum amount 0t labor.

Located near the outer Wall 01 the kiln 10 and at each end, I haveprovided a tile niaehine 36, both of which are designed to receivematerial from a pug mill 37 located between said tile machines. Saidtile machines and said pug mill are simply illustrated diagrammatically,as the details oil. construction of the machines fol-1n no part of mypresent invention. In alineinent with the delivery end of each of saidtile ll'il'uilllluls 36 are conveyors 38 and 3!... The conveyor 38 hasits upper run lomled slightly above the top surtareolf the cars .14 andl t, the lower run of said conveyor extending hcneath said cars. irnysuitable lllflilllf-l lfltly be provided for mounting and operating saidconveyors, so they may be caused to rotate in either direction.

By this arrangement it will he seen that tile from the left hand tilemachine, as shown in Figure 1, may be delivered to the conveyor 38 andreceived from said conveyor 38 and placed on the bottom of the car 14 or14 which should be partially loaded. after which the said partiallyhauled. caraare moved through the kilns Ill and 10 and to a pointbetween said kilns l0 and 10" and the adj accnt kilns 11 and .11respectively.

The conveyor 39 is mounted insuch a manner as to pass above this firsttier of tile, in the manner clearly shown in Figure 5. Tile may then bedelivered from the sec ond tile cutter 36 to the conveyor 39, and fromsaid conveyor 39 to the cars 14 or 14 till / brick machine,

At a pint adjacent to the outer walls of the kilns 10 and 11 and locatedbetween their adjoining ends, I have provided a series of brick machinesmachines being and 11*. Each of said brick machines is provided with aconveyor l-l. In the drawings I have illustrated the brick machines asarranged in groups of three. The conveyor d1 of the forward one of saidbrick machines is longer than the conveyor ell of: the second and so onin the manner clearly illustrated in Figure 1, so that material fromtheouter one of said brick machines may be delivered to the inner edgeof the platform of'the cars ll, while the material from the second tilemachine may be delivered to the center of said cars, and the materialfrom the third tile machine delivered to the outer edge of saidplatform, The operator stands on the carplatform, while laying the ware,which is arranged in the manner illustrated at the point as.

By this arrangement it will be seen that I have provided means wherebythe ware may be easily and quickly placed on said cars with a minimumamount of energy. The conveyors ll are pivotally mounted relative to thebrick machines in such a manner that they may be elevated to a verticalposition when notin use, as shown by dotted lines in Figure 7, tothereby permit the cars to be loaded with tile as previouslydescribed.

In connection with the loading of the tile from the conveyor 39, itshould be mentined that a platform 43 is provided on which the operatorstands, said platform be ing located above'the first layer of tile, asclearly shown in Figure 5. This platform is detachably and slidablymounted on suitable supports l4, so that itmay be moved to a convenientposition adjacent to the stock being piled, If the operators arestacking the ware faster than the advance of the ware bearing cars, theplatform 4:3 may be moved.

rearwardly to a position partially under the.

upper run of the conveyor 39, or vice versa.

Thus itwill be seen that I have provided pair of combined drying andburning kiln, said combined kiln being arranged in pairs in such amanner that the said pair of kilns may be economically operated at aminimum amount of labor and power.

It will further be seen that each set of kilns may be provided with itsown set of mills, which are provided with suitable deafter which itmaybe moved through 40, a similar set of briclr provided for the kilns l0.

livery conveyors so arranged that the mills forfone set of kilns maydeliver material to either set of kilns or to both, sets of kilns,thereby avoiding delays on account of one of the sets of mills beinginoperative.

It will further be'seen that I have provided an improved circulatingsystem for the drier kilns.

I claim as my invention: a

1. In a device of the class described, a series of drying kilns and aburning kiln arranged in common alinement, said drying kilns beingslightly spaced apart, said burning kiln being arranged adjacent to theouter end of one of said drying kilns, means for conveying ceramic warethrough all of said kilns, means for delivering plastic-ware to saidconveying means atthe outer end of one of said drying kilns so that saidconveying means may be partially loaded, and means. for deliveringplastic ware to said conveying means at a point between two adjttCtlDtdrying kilns so that the said conveyingmeans may be completely loaded.

2. In a device of the class described, combined drying and burningkilns, means for conveying ceramic ware through all of said kilns, meansfor delivering plastic ware to said conveying means at a point adjacentto the receiving end of said drying kiln, and means for deliveringplastic ware to said conveying means at a point between the re ceivingand delivery ends of said drying kilns.

3. In a device of the class described, a pair of combined drying andburning kilns arranged parallel and spaced apart, means forconveyingceramic ware through each combined drying and burning kilns, means forconveying plastic ware to either of said conveying means said dryingkilns, and means for delivering plastic ware to either of said conveyingat the receiving end of means at a point between the receiving anddelivery ends of said drying kilns.

4:. In a device of the class described, a pair of drying kilns arrangedparallel and spaced apart, mean-s for conveying ceramic ware througheach of said kilns, means for conveying plastic ware to either of saidconveying means at the receiving ends of said kilns, and means fordelivering plastic ware to either of said conveying means at a pointbetween the receiving and delivering ends of said drying kilns.

5. In a device of the class described, a pair of drying kilns arrangedparallel and spaced apart, means for conveying ceramic ware through eachof said kilns. means for conveying plastic ware to either of saidconveying means at the receiving end of said kilns, means for deliveringplastic ware to either of said conveying means at a point between thereceiving and delivering ends 10 of said kiln,

15 plastic material to of said drying kilns, and means for deliveringplastic Ware delivering means. i

6. In a device of the class described, a pair 5 e of drying kilnsarranged parallel and spaced apart, means for conveying ceramic warethrough each of saidkilns, means for conveying one form of plasticmaterialto either of said conveying means at the receiving end means fordelivering the same form of plastic material to either of said conveyingmeans at a point between the receiving and delivering ends of saidkilns, and means for delivering another form of either of the lastreceiving points of said kilns. 7. In a device of the class described, apair of drying kilns arranged parallel and spaced apart, means i 29 warethrough eachof said kilns, means for conveying one form of plasticmaterial to either of ceiving ends of said kilns, meansi'or deliveringthe same .form of plastic material to either or both of said to eitherofsaid conveying means at'a point between the receiving and deliveringends of for conveying ceramic said conveying means at the re said kilns,means for delivering another form of plastic material to either of thesecond receiving points of said kilns, anril means for deliveringplastic material to, either or both of said delivery means.

8. In a device of the class described, slightly spaced andadjacentdrying kilns, means for conveying ceramic Ware through all of saidkilns, means for delivering plastic 35 Ware to said conveying means at apoint adjacent to the receiving; and of onev of said drying;- kilns, andmeans for delivering plastic Ware to said conveying means through thespace between said kilns. 4n

9. In a device of the class described, a drying kiln, means forconveyingceramic ware through said kiln means for delivering plasticWare to said conveying means at a point adjacent t'othe receiving, endof said drying kiln, and means for delivering plastic ware tosaidconveying means ata point between the receiving and delivery ends ofsaid drying kiln.

Des lirloines, Iowa, April 8, 1926.

HALVER STRAIGHT.

